<template>
  <div>
    <span v-for="item in arr" :key="item"
      ><input type="checkbox" v-model="newArr" :value="item" />{{ item }}</span
    >
    <div>你选中的元素,累加的值和为:{{ totle }}</div>
  </div>
</template>

<script>
export default {
  components: {},
  props: {},
  data() {
    return {
      arr: [9, 15, 19, 25, 29, 31, 48, 57, 62, 79, 87],
      newArr: [],
    };
  },
  computed: {
    totle() {
      return this.newArr.reduce((sum, item) => {
        return (sum += item);
      }, 0);
    },
  },
  watch: {},
  created() {},
  methods: {},
};
</script>

<style scoped></style>
